Sales & outbound · head to head

Clay vs Apollo.io

GTM data and workflow orchestration  vs  B2B sales prospecting and engagement. Specs, capabilities, and what real users said in the last year, lined up.

The verdict

Clay is enrichment infrastructure you design yourself, orchestrating 150+ providers behind custom waterfalls. Apollo is an all-in-one platform: its own 275M-contact database plus multi-provider waterfalls, sequencing, and a dialer under one bill. If custom data workflows and match rates justify the build, Clay wins. If you want contacts and outreach live in an afternoon, Apollo does.

Both source and enrich B2B contacts, and both now run waterfalls. The split is build-it-yourself depth versus all-in-one convenience: Clay is a data workbench, Apollo is a platform.

Meet the two

Clay Sales & outbound

Clay is infrastructure to get data, run agentic workflows, and launch GTM plays, turning first-party, third-party, and web data into repeatable enrichment, research, scoring, routing, and activation workflows.

Our take

A spreadsheet that fetches your GTM data for you, worth it when one person owns it and watches the meter.

Price$167/mo (Launch)Free tierYes (500 Actions + 100 Data Credits/mo)

Reach for it if RevOps and GTM-engineering teams who want to design their own data workflows, and have someone to own them.

Read the full Clay review
Apollo.io Sales & outbound

Apollo. io is an AI sales platform that combines B2B contact and company search, intent and job-change signals, enrichment, sequences, calling, CRM workflows, analytics, AI research, and workflow automation.

Our take

Prospecting, enrichment, and sequencing on one login, worth it when someone owns data validation and the credit meter.

Price$49/seat/mo (Basic, annual)Free tierYes (permanent free plan, small credit allowance)

Reach for it if Lean B2B teams and founder-led outbound that want prospecting, enrichment, and sequencing on one surface, with someone owning data validation and sending.

Read the full Apollo.io review

Specs & price

Clay Sales & outbound

GTM data and workflow orchestration

Apollo.io Sales & outbound

B2B sales prospecting and engagement

$Starting price$167/mo (Launch)$49/seat/mo (Basic, annual)
◇Free tierYes (500 Actions + 100 Data Credits/mo)Yes (permanent free plan, small credit allowance)
▤Pricing modelTwo meters: Actions plus Data CreditsPer seat plus credits
◎Best forRevOps and GTM engineersLean B2B and founder-led outbound
⛓Key integrationsSalesforce, HubSpot, Snowflake, BigQuery, email sequencersSalesforce, HubSpot, LinkedIn, Gmail/Microsoft, MCP
⚠Watch out forRunaway credit burn from auto-refresh and unbounded waterfallsCredit burn and stale or wrong records; verify your ICP first

Rows with a marked spine differ. Specs come from each tool’s own docs and our research ledger.

Feature checklist

ClayApollo.io
Built-in B2B contact database≈aggregates 150+ providers✓275M+ contacts
Waterfall enrichment✓signature multi-provider waterfalls✓multi-provider waterfalls, Basic plan+
Email sequencing≈basic native + Outreach/Salesloft✓sequences + A/B
LinkedIn automation✕enrichment only, no sending≈extension tasks, not native
Built-in dialer / calling✕No✓power dialer
Deliverability / warmup tooling✕No≈basic, no native warmup
Free tier✓500 Actions + 100 credits/mo✓free plan, limited credits
API access≈webhooks, HTTP actions, Enterprise lookup✓Yes

A capability either ships (✓), doesn’t (✕), or ships partway (≈). Differences carry a marked spine.

What users actually say

Clay, in users’ words

Clay is still one of the best enrichment tools out there. Most people who hit walls with it aren't hitting a Clay problem - they're hitting a workflow problem.
u/vinaykrkatiyar, r/AI_Sales commenterReddit · April 22, 2026 ↗
I hate how they auto turn on options that you don't need making you spend credits.
u/Able-Ad4736, r/AI_Sales commenterReddit · August 19, 2026 ↗

Apollo.io, in users’ words

It makes it easy to find relevant companies and decision-makers, build targeted prospect lists, and manage outreach from one platform.
Ankit S., Project Manager, Small-BusinessG2 · August 18, 2026 ↗
Our bounce rates have crept up from 4% to 10-11% over the past 6 months with no changes on our end.
u/ishaammusic, r/growmybusiness commenter (B2B agency)Reddit · April 19, 2026 ↗

Which one, for you

Pick Clay when

you have someone to design workflows and watch the credit meters, and Clay's 150+ providers and custom waterfalls lift match rates enough to justify the build.

Pick Apollo.io when

you want a working list, enrichment, and sequences live today under one seat, without building anything.